Thales Box and OXE

[Ravs]

Guys, we have a customer with 5 OXEs, in a standalone environment. Please if you can shed some light on this. They need their calls between the sites to be encrypted.

Should link these 5 OXEs using ABC-F and put in a Thales Box in front of each of the OXE. Would this be correct.

Also can Thales box encrypt ISDN as well.

[tot3nkopf]

What links do you have between the OXEs currently?

For the H.323 link I think your assumption is correct (ABCF is needed).
Depending on software releases (from R11) you could do this w/o ABCF, on encrypting SIP trunks.

For ISDN I see no point of encrypting. How do you transport the E1 access?

[Ravs]

Hi tot3nkopf

Currently, the OXEs are not connected to each other. We are thinking of upgrading all to r11.1 and then do VoIP between them. Once this is done, then i think the Thales will come in. But not sure, whether Thales is the right thing for the encryption.

The E1 is transported over copper. 1 Pair from the Telco, to a modem and then connected to the OXE. Is it possible to tap on the ISDN links somewhere in between the modem and the telephone exchange.

[frank]

To encrypt through nodes, you will need to use ABC-F IP networking.
The encryption key on the SSM boxes will need to be the same on all nodes.
There is no way to encrypt ISDN, beside using a dedicated T1 , or if you have some kind of phones that do (de)encrypt themselves directly.

[Ravs]

Thanks Frank.

If we convert the 5 Nodes now to 1 Node with 4 PCS. Can we still put a SSM/MSM in front of the Media Gateways. I am raising this since the cost of ABC-F may be more than converting these nodes to PCS. But I am just checking, not really sure.

[frank]

You will need no matter what a thales box in front of each media gateway. Whether they are a full node, or PCS.